•Reno (AIMD) based, loss
indicates congestion
–Back off less when see
congestion
–Recover more quickly
after backing off
•Scalable TCP:
exponential recovery
–Tom Kelly, Scalable
TCP: Improving Performance in Highspeed Wide Area Networks
Submitted for publication, December 2002.
•High Speed TCP:
same as Reno for low performance, then increase window more &
more aggressively as window increases using a table
•Vegas based, RTT indicates congestion
–Caltech FAST TCP,
quicker response to congestion, but …